Fjord Line'sStavangerfjord and Bergensfjord serve on the Hirthals-Stavanger-Bergen route. Stavangerfjord was the first large passenger ship solely operating on liquefied natural gas. A brief description of the technical aspects of Stavangerfjord is found at ship-technolgoy.com; Stavangerfjord is also featured in the 2014 shippax GUIDE Magazine.